Question: How many members were part of the Catholic Church in 2015?
Paraphrase: What was the number of members which were part of the Catholic Church in 2015?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q9592 p:P2124 ?s . ?s ps:P2124 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2015')) }